TechlogLink.petrel2011.1.UserManual

Techlog link Ocean for Petrel plug-in Version 2011.1.0

User Manual

Copyright © 2011 Schlumberger. All rights reserved. This work contains the confidential and proprietary trade secrets of Schlumberger and may not be copied or stored in an information in formation retrieval system, transferred, used, distributed, translated or retransmitted in any form or by an y means, electronic or mechanical, in i n whole or in part, without the express written permission of the copyright owner.

Trademarks & Service Marks Schlumberger, the Schlumberger logotype, and other words or symbols used to identify the products and services described herein are either trademarks, trade names or service marks of Schlumberger and i ts licensors, or are the property of their respective owners. These marks may not b e copied, imitated or used, in whole or in part, without the express prior written permission of Schlumberger. In addition, covers, page headers, custom graphics, icons, and other design elements may be service marks, trademarks, and/or trade dress of Schlumberger, and may not be copied, imitated, or used, in whole or in part, without the express prior written wri tten permission of Schlumberger. Other company, product, and service names are the properties of their respective owners. Petrel and Techlog are marks of Schlumberger.

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Table of Contents 1. Introduction ......................................................................................... 4 2. Help and support information ................................................................. 4 3. Getting Started ..................................................................................... 5 Launching Techog link plug-in .................................................................... 5 Connecting to a Techlog project ................................................................. 5 4. Import Wells......................................................................................... 7 5. Import Logs ......................................................................................... 8 Create a filter ........................................................................................ 10 Create conditional selection ..................................................................... 11 Splicing logs upon Import ........................................................................ 13 6. Import Wellbore Images ...................................................................... 14 Displaying images in Petrel’s Well Section Window...................................... 15 7. Import Dip Interpretation Logs ............................................................. 18 8. Export Well Tops, Model Segments and Zones ........................................ 20 9. Import Fluid Contacts .......................................................................... 22

Techlog Link Ocean for Petrel plug-in 2011.1

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1. Introduction The Techlog Link Ocean for Petrel plug-in provides the ability to exchange data directly between Petrel and Techlog, without the need to use third party applications. The Techlog Link plug-in is available on the Ocean Store and needs to be installed separately from the Petrel main platform. The ability to share interpretation data between the Petrophysicists and Geologists promotes a unified understanding of the reservoir by avoiding duplicate interpretations and increases dialog between the two communities. Additional benefits of this module include: Simplification of data transfer between the Petrel and Techlog platforms. Use of Petrel and Techlog API's ensures correct mapping of data between the applications and insulates customers from underlying changes to internal application data models. Extensible and flexible implementation, which provides scope for incorporation of additional data exchange items.  

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Supported workflows: Importing data from Techlog to Petrel: o Wells, well trajectory, wellhead X & Y location Logs: One-dimensional numerical log curves o Borehole image o Dip angle and dip azimuth interpretation results o Fluid contacts o Exporting data from Petrel to Techlog: Well tops o Petrel grid model segments and zone name (for Contacts import) o 

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2. Help and support information For any issue that is not covered in this manual, please contact Schlumberger Information Solution Customer Care Center ([email protected]), mentioning the “Techlog Link Ocean for Petrel plug-in” in the subject, or visit the support portal (http://support.slb.com).

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3. Getting Started Launching Techog link plug-in The installed Techlog Link module is launched from the Processes window pane in Petrel, under the Techlog data exchange menu (see Figure 1). If the Techlog Link plug-in is not available in the Processes tab, please check that the Techlog Link plug-in has been installed and the appropriate licensing has been activated in the Schlumberger Licensing. Please check the installation documentation for further details.

Figure 1

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Petrel Processes window pane

Connecting to a Techlog project Once the Techlog Link plug-in is launched, from the Import tab, the user can connect to their Techlog project by choosing the Open folder icon to the right of the Techlog project directory field (see Figure 2). In the new window pop-up, browse to locate the Techlog project folder, then select OK . This Techlog project’s content will be listed in the Techlog Link plug-in’s Project browser (see Figure 3). Once you exit the Techlog Link plug-in, then reenter the Techlog Link plug-in, the Techlog path isn’t opened automatically. However, if you select the Open folder icon, the Techlog project path is persisted.

Figure 2

Techlog Link

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Figure 3

Techlog Link

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Navigating the directory tree and selecting the desired Techlog project populates the Techlog Project browser tree window with the same Project browser data tree of wells, datasets and variable data as available in the Techlog project (see Figure 4).

Figure 4

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Techlog Link

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4. Import Wells Open the Techlog Link (see Figure 1) and select a Techlog Project. Open the Wells mapping tab, it shows the list of wells in the Techlog project, and either a well with a matching name in the Petrel project, or the option. In the later case, when the user wants to import data from that well, the well will be imported automatically. The user can also choose to Ignore that well, or map to a different well (see Figure 5).

Figure 5

Techlog Link

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The user can import one or several wells directly by selecting them in the Techlog link’s project browser. Hold down the Ctrl key for selecting multiple items, and the Shift key for selecting a range of items in the project tree, then click on the Import button. The location of the created well head is based on the X , Y and Elevation properties of the Techlog well. The trajectory information (MD, hole deviation, hole azimuth) will be imported primarily from the Trajectory dataset indicated in the Import’s Settings tab. The default trajectory dataset is set to Index , but this can be changed by the user (see Figure 6). The algorithm starts in this dataset and looks for variables that have families Hole Deviation and Hole Azimuth. If a match by family is not found, other datasets are checked for these families, then the variable names containing string “INC” for inclination, and “AZI” for azimuth is searched.


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Figure 6

Techlog Link

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If some of the location or trajectory information is missing, a well will still be created in Petrel, with a default location and vertical trajectory. Refer to the Petrel message log for more details.

5. Import Logs Open the Techlog Link and select the Techlog Project to view the Techlog project browser. Expand a well node, then expand a dataset node to see the variable logs available to import from the Techlog project to the Petrel project. Selecting a dataset will transfer all logs in the dataset. Or, the user can select individual logs in a dataset for import by using Ctrl key as the logs are selected in the Project browser. The variable logs selected for transfer are located on the Import tab’s Log mapping tab. Go to the Log mapping tab to verify the Techlog family to Petrel template pairing for the log variables set to be imported. Each log’s template pairing and Global Well Log should be verified and set appropriately (see Figure 7). The default mapping between log names and property templates is the one also used by Petrel’s LAS import function which is controlled by the xml file, LogNamesToPropertyTypeCatalog.xml . If the Log name is known, either through this mapping file, or if a global well log already exists in the Petrel project, then the corresponding Property template is shown, and the Global well log is set to that existing log, or to . The data transfer transfers the data value but does not do a unit conversion. The unit of measurement assigned to both the Techlog and Petrel log variable are listed in the Log mapping tab.

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Note that only 1D, numerical, measured-depth indexed logs are supported for import. Facies data can be imported with the Property template General Integer , then displayed with block styling in Petrel’s Well Section Window . For unmapped logs, the property template is defaulted to General and Global well log to . The Data view tab will display the log variable’s data values. When a dataset is selected, all log variables’ data values are displayed on this Data view tab. Note that the data is displayed in several pages. Use the controls at the bottom of the Data view window to go to a specific section of the log data. If more than one dataset is selected with Ctrl key, only the most recently selected dataset’s data is displayed. If more than one single log variable is chosen with Ctrl key, only the most recently selected log variable’s data is displayed. Once the object selection is done and both well and log mappings are confirmed, select the Import button on the lower left corner of the Techlog Link main window (see Figure 7). The settings on this Log mapping tab and the overwrite or splice choice in the Settings will dictate if the imported wells will newly be created, overwritten, or spliced upon import into Techlog.

Figure 7

Techlog Link

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Create a filter If there is data common in several wells needs to be imported, the Create a filter and Create conditional selection features might be helpful. They each have a specific use and can be used independently from each other. The Create a filter feature will filter the Project browser’s well list to only include similarly selected data. The filtering applies to both datasets and individual variable logs. For example, if the user selects LQC dataset, then Create filter (see Figure 8), the well list will filter down to only show wells that contain a dataset named LQC (see Figure 9). Notice how the background of the Project browser window turns to a light yellow shade. To disable the filter, right click in the Project browser window and select Remove the current filter . Notice how the background color goes back to white.

Figure 8

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Techlog Link

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Figure 9

Techlog Link

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Create conditional selection The Create conditional selection feature will highlight all data similar to the current data selection. The conditional selection feature works both with datasets and individual variable logs. This feature can work with a filter active or independent of an active filter, but the results will be different according to the active well list. For example, if I expand the two filtered wells C1 and C2, both LQC datasets have many variable logs. From the C1 well’s LQC dataset, if I hold down Ctrl key & select GR, POR, and SW , then choose to Create conditional selection (see Figure 10), all listed wells that have GR, POR, or SW will expand respective datasets and highlight these logs (see Figure 11). This automatic multi-selection makes the data selection efficient for the user. Conversely, if all wells were listed in the Project browser and no filter was applied, when I choose GR, POR, and SW logs, then Create conditional selection, all listed wells that have GR, POR, or SW will expand respective datasets and these logs would be highlighted.


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Figure 10

Figure 11

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Techlog Link

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Techlog Link

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These newly imported well logs have been created in the Petrel Input tab’s data tree (see Figure 12).

Figure 12

Petrel Input window pane

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Splicing logs upon Import When you are importing a log that is paired to a Global Well Log that already exists for a well, the user has a choice to Overwrite or Splice the new log with the existing well log. The selection choice is on the Import’s Settings tab (see Figure 13). When the user chooses to Splice the new log with the existing well log, the splice point will be at the imported data’s top reference depth.

Figure 13

Techlog Link

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6. Import Wellbore Images The Techlog Link plug-in can import raster borehole images that have been created in Techlog directly from the image data file. In the Techlog project, the user had to create a Raster image conversion from the processed image array. This is done inside Techlog by selecting the borehole image matrix array, then right-clicking and choosing Raster image conversion. The resulting borehole image dataset is the object that can be imported from Techlog to Petrel using the Techlog Link plug-in. After selecting (highlighting) the desired borehole image dataset in the Techlog project tree, open the Image view tab to look at the image. The vertical scroll bar on the right hand side of this Image view tab enables visualization of the entire borehole image (see Figure 14). Once confirming the Well mapping tab settings, select Import in the lower-left corner of the Techlog Link main window to import the image picture file directly to Petrel.

Figure 3

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Techlog Link

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Displaying images in Petrel’s Well Section Window Once the new image file has been imported directly into the Petrel active project, a new Global Well Log will be created. In order to display the image in Petrel’s Well Section Window , simply toggle on the Well and the image’s Global Well Log from Petrel’s Input panel. After a few seconds, the borehole image will appear in the Well Section Window in a separate track for the appropriate well (see Figure 15).

Figure 15

Petrel Input window pane and Well Section window

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The geology image file is imported from Techlog as a Petrel bitmap image file. This imported image is a concatenation of multiple images. The default display setting for bitmap images in a Well Section Window’s track is to display each image’s boundary as a horizontal line. These boundary lines are by default displayed in red. When an imported image is displayed in Petrel’s Well Section Window on a condensed scale, the red boundary lines might dominate the display at this scale (see Figure 16). The image can be seen once the well is rescaled. Or these image boundary lines can be turned off (see Figure 17).

Figure 16

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Petrel Well Section window

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To turn off the image boundary lines in the Petrel Well Section Window track, go to the active Well Section display template. On the template tab, right click on the active display template and choose Settings (see Figure 17). On the Well Section template tab, select the bitmap image node and select its Style tab. To remove the red image boundary lines, uncheck the box next to Show , then apply the changes.

Figure 17

Petrel Input, Process, Well Section windows

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7. Import Dip Interpretation Logs The Techlog Link plug-in can import dip angle and dip azimuth results. The dip dataset(s) need to be located in a Group in order to properly import. And the name of the dips’ Group name must be correctly indicated on the Import’s Settings tab in the Dips group name field. The Techlog project can transfer one or several different dip datasets, but only the dip angle and dip azimuth will be transferred per dip dataset. For example, in the example below, well C1 has three separate dip datasets. In the original Techlog project, the three dip datasets were placed in a Group called Final_Dip. The Techlog Link Import’s Settings tab has the Dips group name field correctly set to match the Group name Final_Dip (see Figure 18). With this setup, the user can either select the Group to move the dip angle and dip azimuth of all three datasets. Or, the user can select each dataset + the Ctrl key to select multiple datasets to import. Alternatively, the user can select a single data set to move only that dataset’s dip results. The default Dip group name on the Settings tab is Final_Dip, but this name can be changed to match which group of importing dip results.

Figure 18

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Techlog Link

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After selecting (highlighting) either the whole Final_Dip group or one of its individual datasets, confirm the settings on the Well mapping and Log mapping tabs. The true dip angle should be mapped to Petrel template Dip angle. The true dip azimuth should be mapped to Petrel template Dip azimuth. If these Global well logs do not already exist, choose the option to . on the Well mapping tab, then select Import to import the dip results. The dip angle and dip azimuth logs can then be displayed in Petrel’s Well Section Window as tadpoles or in a polar frequency plot (see Figure 19).

Figure 19

Petrel Well Section window

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8. Export Well Tops, Model Segments and Zones The Techlog Link plug-in can export well tops from the active Petrel project to a Techlog project. On the Export tab, choose the open folder icon to browse and select the export Techlog project directory (see Figure 20). The project directory is the same as listed on the Import tab, but the user can browse and select a different export Techlog project. Select the Wells folder or an individual Well in Petrel’s Input tab, then select the blue arrow on this Export tab to move them to the Well(s) field on this Export tab. Inserting a Well tops set is optional. To narrow down the exported well tops set to a specific Well Tops container, select that Well Tops container in the Petrel Input tab, then select the blue arrow on this Export tab to move them to the Well tops set field on this Export tab (see Figure 20). Inserting a Model Pillar Grid is also optional. Providing the model pillar grid enables the Well Tops export to also include the Petrel grid model’s segments and zones which will be contained in additional fault block and zone variable properties. Techlog’s Fluid Code analysis module will need to use this imported Well Tops set , along with its additional grid model segments and zones information, to compute fluid contacts. The resulting Techlog contacts will then contain the appropriate hydraulic zone information required to import the Contacts back to Petrel. Users are then given the opportunity to insert a Techlog dataset name prefix for the exported Well tops set. The default dataset prefix is PETREL (see Figure 20). This creates a Techlog interval dataset type named PETREL_Tops for each transferred well, but this prefix can be changed as needed. Check the box next to Overwrite the existing dataset to overwrite that specific well tops dataset for a well. The red and green arrows in the bottom left corner of the Data view window will expand and collapse the well tops listing.

Figure 20

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Techlog Link

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On the same Export tab, select the Wells Mapping tab to assign well pairing between the active Petrel project and the Techlog project. Techlog well mapping allows the selection of existing wells or ignoring wells that do not need to be transferred. The green and brown tree icon in the lower left of the display provides auto mapping functionality that matches Petrel well names to Techlog well names (see Figure 21). The red X ignore all icon sets all wells to ignore. Desired wells to be transferred can then be mapped individually. This is useful when the user wants to only to transfer a few wells from a long list.

Figure 21

Techlog Link

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When ready to export the well tops information, select the Export Icon. Upon completion, the user will receive a message stating “Well tops export complete. Do you want to reload the Techlog project in the “Project browser” on the “Import” tab? (see Figure 22). If the user chooses Yes, the Techlog project will be reloaded as seen in the Project browser of the Techlog Link’s Import tab.

Figure 22

Techlog Link message window

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If the Techlog project was open in the Techlog application, the user will need to reload the well or perform a partial load for the newly exported datasets from the Techlog platform’s Project browser. Providing the model pillar grid enables the Well Tops export to also include the Petrel grid model’s segments and zones which will be contained in additional fault block and zone variable properties. Techlog’s Fluid Code analysis module can use this imported Well Tops set, that includes the additional grid model segments and zones information, to compute fluid contacts. The resulting Techlog contacts will then contain the appropriate hydraulic zone information required to import the Contacts back to Petrel.

9. Import Fluid Contacts After successful import of Petrel well tops that include information about the grid model segments and zones, these well tops can be used to compute Techlog fluid contacts that will map to these Petrel segments and zones. Techlog’s Fluid Code analysis module can use this imported Well Tops set, that includes the additional grid model segments and zones information, to compute fluid contacts. The resulting Techlog contacts will then contain the appropriate hydraulic zone information required to import the Contacts back to Petrel. To transfer Fluid Contacts to Petrel, open the Techlog Link and select the desired project (see Figure 2). From the Project browser, select the Contact dataset to import (see Figure 23). The contact details can be viewed in the Data view tab. In order to import Fluid Contacts back to Petrel, the user must also map the correct receiving Petrel grid model on the Import’s Settings tab (see Figure 24). Once the Petrel grid model has been specified, click on the Import button to import the contacts to Petrel.

Figure 23

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Techlog Link

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Figure 24

Techlog Link

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Expand the Petrel grid model located on the Models tab. Under the Fluid contacts, a new contact set named TL_Contacts has been created (see Figure 25).

Figure 25

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Petrel Models window pane


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The Petrel process Make Contacts located in the Corner point gridding processes can enable visualization of the imported fluid contacts by zone and segment (see Figure 26). These newly imported contacts can then be displayed or used as any native Petrel contact set, including volumetric calculations. In this example, an oil-water-contact (OWC) for the zone Ness-2 has been defined for several segments.

Figure 26

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Petrel Make Contacts process

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TechlogLink.petrel2011.1.UserManual

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